Post on 28-Dec-2015
BFTAWBFTAWBDPA WorkshopBDPA Workshop
Introduction to GIMPIntroduction to GIMPChris Kundinger-cjkundin@us.ibm.comChris Kundinger-cjkundin@us.ibm.com
2.16.082.16.08
Some Image TypesSome Image Types
Bitmap ()Bitmap () JPEG (Web)JPEG (Web) TIFF (Printing)TIFF (Printing) GIF (Small, few colors)GIF (Small, few colors) PNG (Replace for GIF)PNG (Replace for GIF) XCF (GIMP)XCF (GIMP)
BitmapBitmap
Microsoft Paint’s defaultMicrosoft Paint’s default UncompressedUncompressed Windows wallpaperWindows wallpaper Large file sizesLarge file sizes
JPEG or JPGJPEG or JPG
Commonly used for pictures (and Commonly used for pictures (and cameras)cameras)
Small file sizes (great for web)Small file sizes (great for web) File size vs quality (user can change)File size vs quality (user can change) Lossy data compressionLossy data compression
GIFGIF
Static or animatedStatic or animated Index colors (256 colors)Index colors (256 colors) non-photographic type images non-photographic type images
(buttons…)(buttons…)
TIFFTIFF
Great for printing (Great quality)Great for printing (Great quality) Large filesLarge files Optional compression LZW (lossless)Optional compression LZW (lossless)
PNGPNG
Portable Network GraphicPortable Network Graphic W3C standard to replace GIFW3C standard to replace GIF Doesn’t lose quality (lossless)Doesn’t lose quality (lossless) TransparentTransparent
XCFXCF
GIMP’s file extensionGIMP’s file extension Preserves your image as a “working Preserves your image as a “working
project”project” LayersLayers ColorsColors HistoryHistory AttributesAttributes
Image Type SummaryImage Type Summary
Bitmap (Large file size)Bitmap (Large file size) JPEG (Web Images, small files size)JPEG (Web Images, small files size) TIFF (Best quality, ideal for Printing, larger TIFF (Best quality, ideal for Printing, larger
file size)file size) GIF (Small, few colors – 256 max, animate, GIF (Small, few colors – 256 max, animate,
transparent)transparent) PNG (Replace for GIF, 16 million colors, PNG (Replace for GIF, 16 million colors,
transparent, animate)transparent, animate) XCF (Preserves layers and other GIMP XCF (Preserves layers and other GIMP
attributes to create a “working project”)attributes to create a “working project”)
Printing vs Web(screen)Printing vs Web(screen)
Printing Printing dpi: 150 – 300, 400 – 1500 (Pros)dpi: 150 – 300, 400 – 1500 (Pros) CMYK (Cyan, Magenta, Yellow, Key CMYK (Cyan, Magenta, Yellow, Key
(black) )(black) ) TIFF or JPEG imagesTIFF or JPEG images
ScreensScreens dpi: 72dpi: 72 RGB (Red, Green, Blue)RGB (Red, Green, Blue) JPEG, GIF, or PNG imagesJPEG, GIF, or PNG images
PixelPixelShort for Short for Picture ElementPicture Element
NO inherent height or widthNO inherent height or width NO inherent shapeNO inherent shape One color (any color)One color (any color) A Screen Resolution (1280x1024)A Screen Resolution (1280x1024)
Introduction to GIMPIntroduction to GIMP(Image panel)(Image panel)
Tools
Properties of the tool selected
Ruler Zoom
General topicsGeneral topics
Canvas, Images, Layer, SelectionCanvas, Images, Layer, Selection SelectionSelection LayersLayers Rotate, Scale, Mirror and ResizeRotate, Scale, Mirror and Resize Crop Images Crop Images Fill or outline selectionsFill or outline selections
Canvas, Image, Layer, Canvas, Image, Layer, SelectionSelection
Canvas (entire boundary) – resize doesn’t affect imageImage (entire boundary) – resizes everything including canvasLayer (black and yellow dotted line) – only can edit within that box when you’re on that layerSelection (black and white dotted line) - Only changes within selection
SelectionSelection
Lasso – Draw your selection like a pencil
Circle – Select round images
Square – Select square images
Normal, Add, Subtract, Intersect
Wand – Select by similar color you select (touching)
Color – Select regions with similar color
LayersLayers(part 1)(part 1)
Image shown above
Current Layer selected (White background)
Top Layer (Transparent background)
Bottom Layer (Covered by current layer)
Layer – Hide or show it
Trash – Delete Layer
Add Layer – Move Layer – Duplicate Layer
LayersLayers(part 2 – Pasting a picture)(part 2 – Pasting a picture)
Pasting into your picture produces this “Floating” selectionYou have two options:
1) Anchor the pasted later into the layer underneath
2) Create a new layer and put the pasted layer on top
Rotate, Scale, Mirror and Rotate, Scale, Mirror and ResizeResize
(only for layer, selection, or path)(only for layer, selection, or path)
Rotate
Scale
Shear
Perspective
Mirror
Fill or Outline selectionFill or Outline selection
1. Make a selection2. Pick your color (I used blue)3. Click the Edit menu4. Click “Fill with FG Color” (to fill)
or “Stroke Selection” (to outline)
Advanced TopicsAdvanced Topics
Layer Mask (coming up…)Layer Mask (coming up…) Picture collage Picture collage Enhance colorsEnhance colors Picture touch upPicture touch up
Layer MaskLayer Mask(step 1)(step 1)
1. Create two layers (Mask and Background)2. Select the top layer (as shown below)
Layer 1 - Mask
Layer 1 - Background
Layer MaskLayer Mask(step 2)(step 2)
1. Use the wand tool to select the inside of the puzzle piece.
2. Delete your selection using the delete key once the space inside the puzzle is selected.
Layer MaskLayer Mask(step 3)(step 3)
1. Continue to do that for the remaining pieces (feel free to try something creative with the black piece!)
GIMP ResourcesGIMP Resources GimpGimp Resources Resources
Tutorials, Inspiration, Patterns, Brushes & MoreTutorials, Inspiration, Patterns, Brushes & More
Gimp TutorialsGimp Tutorials http://www.gimp.org/tutorials/http://www.gimp.org/tutorials/
DeviantArtDeviantArt http://browse.deviantart.com/resources/applications/gimpbrushes/http://browse.deviantart.com/resources/applications/gimpbrushes/
Hawsmont UniverseHawsmont Universe http://hawksmont.com/blog/category/graphic_design/resources/http://hawksmont.com/blog/category/graphic_design/resources/
gimp_brushes/gimp_brushes/ livejournal livejournal
http://community.livejournal.com/gimpbrushes/http://community.livejournal.com/gimpbrushes/ Snap2Objects – 85 Killer Resources Every Designer Should KnowSnap2Objects – 85 Killer Resources Every Designer Should Know
http://www.snap2objects.com/2007/06/06/85-killer-resources-every-http://www.snap2objects.com/2007/06/06/85-killer-resources-every-designer-should-know/designer-should-know/
Smashing MagazineSmashing Magazine http://www.smashingmagazine.com/category/showcase/http://www.smashingmagazine.com/category/showcase/